/*
 * Licensed to Elasticsearch B.V. under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch B.V. licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

using System.Collections.Generic;
using System.Runtime.Serialization;

namespace Nest
{
	[DataContract]
	public class AnalyzeResponse : ResponseBase
	{
		/// <summary>
		/// When <see cref="IAnalyzeRequest.Explain " /> is to true this will hold the detailed view of the analyzed tokens.
		/// </summary>
		[DataMember(Name ="detail")]
		public AnalyzeDetail Detail { get; internal set; }

		/// <summary>
		/// When <see cref="IAnalyzeRequest.Explain " /> is not true this will hold the analyzed tokens.
		/// </summary>
		[DataMember(Name ="tokens")]
		public IReadOnlyCollection<AnalyzeToken> Tokens { get; internal set; } = EmptyReadOnly<AnalyzeToken>.Collection;
	}


	[DataContract]
	public class AnalyzeDetail
	{
		[DataMember(Name ="charfilters")]
		public IReadOnlyCollection<CharFilterDetail> CharFilters { get; internal set; } = EmptyReadOnly<CharFilterDetail>.Collection;

		[DataMember(Name ="custom_analyzer")]
		public bool CustomAnalyzer { get; internal set; }

		[DataMember(Name ="tokenfilters")]
		public IReadOnlyCollection<TokenDetail> Filters { get; internal set; } = EmptyReadOnly<TokenDetail>.Collection;

		[DataMember(Name ="tokenizer")]
		public TokenDetail Tokenizer { get; internal set; }
	}

	[DataContract]
	public class CharFilterDetail
	{
		[DataMember(Name ="filtered_text")]
		public IReadOnlyCollection<string> FilteredText { get; internal set; } = EmptyReadOnly<string>.Collection;

		[DataMember(Name ="name")]
		public string Name { get; internal set; }
	}

	[DataContract]
	public class TokenDetail
	{
		[DataMember(Name ="name")]
		public string Name { get; internal set; }

		[DataMember(Name ="tokens")]
		public IReadOnlyCollection<ExplainAnalyzeToken> Tokens { get; internal set; } = EmptyReadOnly<ExplainAnalyzeToken>.Collection;
	}

	[DataContract]
	public class ExplainAnalyzeToken
	{
		[DataMember(Name ="bytes")]
		public string Bytes { get; internal set; }

		[DataMember(Name ="end_offset")]
		public long EndOffset { get; internal set; }

		[DataMember(Name ="keyword")]
		public bool? Keyword { get; internal set; }

		[DataMember(Name ="position")]
		public long Position { get; internal set; }

		[DataMember(Name ="positionLength")]
		public long? PositionLength { get; internal set; }

		[DataMember(Name ="start_offset")]
		public long StartOffset { get; internal set; }

		[DataMember(Name ="termFrequency")]
		public long? TermFrequency { get; internal set; }

		[DataMember(Name ="token")]
		public string Token { get; internal set; }

		[DataMember(Name ="type")]
		public string Type { get; internal set; }
	}
}
